According to the United States Census Bureau, the township had a total area of 2.810 square miles (7.277 km2), of which, 2.735 square miles (7.084 km2) of it was land and 0.075 square miles (0.193 km2) of it (2.65%) of it was water.[1][2]

The township has three main sub-divisions. Great Notch is the easternmost part of Little Falls. The downtown area is frequently referred to as "The Center of Town", mainly by longtime residents, and is usually referred to as simply Little Falls. Singac is in the westernmost portion of the township. Much of Singac borders the Passaic River.[19]

There were 4,740 households, of which 22.8% had children under the age of 18 living with them, 45.8% were married couples living together, 10.2% had a female householder with no husband present, and 40.4% were non-families. 33.1% of all households were made up of individuals, and 12.6% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 3.04.[7]

In the township, 13.7% of the population were under the age of 18, 29.4% from 18 to 24, 21.0% from 25 to 44, 22.8% from 45 to 64, and 13.0% who were 65 years of age or older. The median age was 32.1 years. For every 100 females there were 81.9 males. For every 100 females age 18 and over, there were 78.2 males.[7]

The Census Bureau's 2006-2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $78,318 (with a margin of error of +/- $8,244) and the median family income was $92,462 (+/- $12,925). Males had a median income of $67,585 (+/- $7,860) versus $42,270 (+/- $3,385) for females. The per capita income for the borough was $34,505 (+/- $3,336). About 4.7% of families and 6.0% of the population were below the poverty line, including 8.1% of those under age 18 and 10.2% of those age 65 or over.[35]

There were 4,687 households out of which 22.9% had children under the age of 18 living with them, 49.1% were married couples living together, 9.4% had a female householder with no husband present, and 38.7% were non-families. 33.1% of all households were made up of individuals and 13.3% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.99.[33][34]

In the township the population was spread out with 18.1% under the age of 18, 6.6% from 18 to 24, 32.4% from 25 to 44, 24.9% from 45 to 64, and 17.9% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 89.7 males. For every 100 females age 18 and over, there were 87.4 males.[33][34]

The median income for a household in the township was $58,857, and the median income for a family was $70,223. Males had a median income of $49,136 versus $37,727 for females. The per capita income for the township was $33,242. About 2.8% of families and 4.6% of the population were below the poverty line, including 4.8% of those under age 18 and 4.9% of those age 65 or over.[33][34]

Effective January 1, 2005, the form of government in Little Falls was changed by a public referendum to the Mayor-Council form authorized by the Faulkner Act. Under the new government, the voters directly elect the mayor to a four-year term, and the five township council members to four-year terms of office on a staggered basis, with either three seats or two seats and the mayoral seat up for election in even years as part of the November general election. For most of its history, Little Falls had been governed under the Township form of government by a township committee consisting of five committee members elected by the voters. Under this system, a chairman (mayor) and deputy-chair (deputy mayor) were selected annually by the Township Committee members. [5]

As of 2015[update], the Mayor of Little Falls is Republican Darlene Post, whose term of office ends on December 31, 2016. Members of the Township Council are Council President Louis Fontana (R, 2016), James Belford Damiano (D, 2018), William "Bill" Liess (D, 2018), Joseph Maceri (R, 2018) and Pam Porter (R, 2016).[37][38][39][40]

Post won election to a full four-year term as mayor in the 2012 general election, along with all three of her Republican running mates for Township Council; Louis Fontana, Pamela Porter and Joseph Rento (who won the balance of an unexpired term of office).[41]

As of March 23, 2011, there were a total of 7,632 registered voters in Little Falls, of which 2,084 (27.3% vs. 31.0% countywide) were registered as Democrats, 1,800 (23.6% vs. 18.7%) were registered as Republicans and 3,745 (49.1% vs. 50.3%) were registered as Unaffiliated. There were 3 voters registered to other parties.[68] Among the township's 2010 Census population, 52.9% (vs. 53.2% in Passaic County) were registered to vote, including 61.3% of those ages 18 and over (vs. 70.8% countywide).[68][69]

In the 2012 presidential election, Democrat Barack Obama received 52.9% of the vote (3,190 cast), ahead of Republican Mitt Romney with 46.1% (2,780 votes), and other candidates with 1.0% (62 votes), among the 6,086 ballots cast by the township's 9,118 registered voters (54 ballots were spoiled), for a turnout of 66.7%.[70][71] In the 2008 presidential election, Republican John McCain received 2,908 votes (49.5% vs. 37.7% countywide), ahead of Democrat Barack Obama with 2,734 votes (46.5% vs. 58.8%) and other candidates with 65 votes (1.1% vs. 0.8%), among the 5,879 ballots cast by the township's 7,835 registered voters, for a turnout of 75.0% (vs. 70.4% in Passaic County).[72] In the 2004 presidential election, Republican George W. Bush received 2,994 votes (50.6% vs. 42.7% countywide), ahead of Democrat John Kerry with 2,723 votes (46.0% vs. 53.9%) and other candidates with 47 votes (0.8% vs. 0.7%), among the 5,921 ballots cast by the township's 7,798 registered voters, for a turnout of 75.9% (vs. 69.3% in the whole county).[73]

For public school, students in kindergarten through eighth grade are educated by the Little Falls Township Public Schools. As of the 2011-12 school year, the district's three schools had an enrollment of 916 students and 73.9 classroom teachers (on an FTE basis), for a student–teacher ratio of 12.40:1.[77] Schools in the district (with 2011-12 enrollment data from the National Center for Education Statistics[78]) are Little Falls School #2[79] with 211 students in grades kindergarten through two; Little Falls School #3[80] with 196 students in grades three and four; and Little Falls School #1[81] with 388 students in grades five through eight.[82][83]

For ninth through twelfth grades, students in public school attend Passaic Valley Regional High School, which also serves students from Totowa and Woodland Park. The school facility is located in Little Falls.[84]

Most of Montclair State University is located in Little Falls. During 2011, the university employed 66 residents on a full or part-time basis, who earned almost $3.5 million in total.[85]

As of May 2010[update], the township had a total of 37.65 miles (60.59 km) of roadways, of which 24.55 miles (39.51 km) were maintained by the municipality, 10.87 miles (17.49 km) by Passaic County and 2.23 miles (3.59 km) by the New Jersey Department of Transportation.[86]

^Kadosh, Matthew. "Little Falls Republicans secure mayor, council seats", Passaic Valley Today, November 7, 2012. Accessed January 13, 2013. "Republican Mayor Darlene Post kept her position as the township's top official and three Republican candidates won council seats on Tuesday.... Republican Councilwoman Pamela Porter received 2,293 votes, or about 18.5 percent of the electorate. Republican Council President Louis Fontana received 2,206 votes, or about 17.8 percent of the electorate. Republican Councilman Joseph Rento received 2,164 votes, or about 17.5 percent of the electorate."

^District Information, Passaic Valley High School. Accessed January 26, 2015. "The regional district which is served by Passaic Valley High School is comprised of the communities of Little Falls, Totowa Borough and Woodland Park."

^Montclair State in the Community: Little Falls, Montclair State University. Accessed August 5, 2013. "Montclair State can take pride in its rich history of bold educational innovation and vital service to the state, including an array of concrete benefits to its two host counties of Passaic and Essex and its four host communities of Little Falls, Montclair, Clifton, and Bloomfield: economic benefits, educational benefits, and community-service benefits."

^Sharkey, Joe. "JERSEY;Their Son, the Writer, Finally Tells All", The New York Times, June 2, 1996. Accessed August 27, 2012. "As it turned out, you could take the boy out of Little Falls, but you couldn't take Little Falls out of the boy. Now, at 33, Frank DeCaro forgets nothing about growing up gay in Little Falls, and tells all in his first book, A Boy Named Phyllis: A Suburban Memoir (Viking)."

^Staff. "TO GET HIGHEST AWARD", The New York Times, October 2, 1945. Accessed March 18, 2011. "Marine Pfc. Franklin E. Sigler, Little Falls, N.J., will receive the Congressional Medal of Honor from President Truman in Washington on Friday."